This ProtoArc arc mouse is designed for comfortable use and features a trackball for easy navigation. It is a wireless unit with a maximum DPI of 7200 and opto-mechanical tracking method. The mouse has six buttons and is ergonomic in design. It is missing a charger, but it is still a great unit for anyone looking for a comfortable and reliable wireless mouse. The color is white and it is a unit type of unit. This mouse is perfect for those who need a comfortable and efficient wireless mouse for their daily work.